<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>头像上传</title>
    <link rel="stylesheet" href="../../../component/pear/css/pear.css" />
</head>
<body class="pear-container">
    <div class="layui-row layui-col-space15">
        <div class="layui-col-xs9">
            <div style="height:325px;background-color: rgb(247, 247, 247);">
                <img id="sourceImage" src="">
            </div>
        </div>
        <div class="layui-col-xs3" style="padding-left:0px;">
            <div id="previewImage" style="width:210px;height:210px;border: 1px solid rgb(200, 200, 200);border-radius: 50%;overflow:hidden;">
            </div>
        </div>
    </div>
    <div class="layui-row">
        <div class="layui-form-item">
            <div class="layui-input-inline layui-btn-container" style="width: auto;vertical-align:top;">
                <button class="pear-btn pear-btn-sm pear-btn-primary layui-icon layui-icon-left" cropper-event="rotate" data-option="-15" title="左旋15°"></button>
                <button class="pear-btn pear-btn-sm pear-btn-primary layui-icon layui-icon-right" cropper-event="rotate" data-option="15" title="右旋15°"></button>
                <button class="pear-btn pear-btn-sm pear-btn-danger layui-icon layui-icon-refresh" cropper-event="reset" title="重置"></button>
                <label for="uploadPicture" class="pear-btn pear-btn-sm pear-btn-primary layui-icon layui-icon-upload" title="选择图片"></label>
                <input class="layui-upload-file" id="uploadPicture" type="file" value="选择图片">
            </div>
            <div class="layui-form-mid layui-word-aux">建议:图片的尺寸宽高比为1:1,大小在5m以内。</div>
        </div>
    </div>
    <script src="../../../component/layui/layui.js"></script>
    <script src="../../../component/pear/pear.js"></script>
    <script>
        layui.use(['jquery','layer','cropper'], function () {
            let $ = layui.jquery;
            let layer = layui.layer;
            let cropper = layui.cropper;

            var options = {
                aspectRatio: 1 / 1, // 裁剪框比例
                preview: '#previewImage', // 预览div
                viewmode: 1
            };
            
            $("#sourceImage").attr("src", parent.layui.$("#userAvatar").attr("src"));
            console.log(parent.layui.$("#userAvatar").attr("src"));
            $("#sourceImage").cropper(options);

            window.submitForm = function () {
                $("#sourceImage").crossOrigin = 'anonymous';//解决跨域图片问题
                $("#sourceImage").cropper("getCroppedCanvas", {
                    width: 280,
                    height: 140
                }).toBlob(function (blob) {
                    var timeStamp = Date.parse(new Date());
                    var fileName = timeStamp + '.jpg';
                    var formData = new FormData();
                    formData.append('file', blob, fileName);
                    formData.append('fileName', fileName);
                    formData.append('fileToken', timeStamp);
                    
					// $.ajax({
                    //     method: "post",
                    //     url: "", //用于文件上传的服务器端请求地址
                    //     data: formData,
                    //     processData: false,
                    //     contentType: false,
                    //     success: function (result) {
                    //         //后续操作
                    //     }
                    // });
                    
                    //demo环境，直接返回
                    console.log(blob);
                    var reader = new FileReader();
                    reader.readAsDataURL(blob);
                    reader.onload = function (e) {
                        var data={
                            index:parent.layer.getFrameIndex(window.name),
                            newAvatar : e.target.result
                        };
                        console.log(data);
                        parent.window.callback(data);
                    };
                });
            }

            $(".pear-btn").on('click', function () {
                var event = $(this).attr("cropper-event");

                if (event === 'rotate') {
                    var option = $(this).attr('data-option');
                    $("#sourceImage").cropper('rotate', option);
                } else if (event === 'reset') {
                    $("#sourceImage").cropper('reset');
                }

                $("#uploadPicture").change(function () {
                    var r = new FileReader();
                    var f = this.files[0];

                    var uploadFileSize = f.size / 1024;
                    if (uploadFileSize > 5120) {
                        parent.layer.msg("上传文件不得超过5m", { icon: 5 });
                        return false;
                    }

                    r.readAsDataURL(f);
                    r.onload = function (e) {
                        $("#sourceImage")
                            .cropper('destroy')
                            .attr('src', this.result)
                            .cropper(options);
                    };
                });
            });
        });
    </script>
</body>

</html>